System crontab

[Kevin Fries]

Most modern Linuxes also have a facility to all files in a directory.  These
Linux versions will usually preload your crontab to run at a different
directory every hour, day, week, or month.  Usually, these directories are
called /etc/cron.daily for the once per day, etc.

If your system is so equipped, simply placing a running script, with execute
permissions on the appropriate folder, will cause the script to be added to
the rotation.  If its important, be aware that run-parts runs files
alphabetically.

Once the file is put in one of these directories, cron will automatically
find it, no need to mess with a crontab file at all, and since run-parts is
executed from the system crontab, everything is run as root.

HTH
Kevin

On Jul 29, 2010 11:11 PM, "keith smith" <klsmith2020 at yahoo.com> wrote:


Hi,

I have been setting up a cron job and found out there are two different
crons. 1) the user cron located at  /var/spool/cron/ on my Fedora Box and 2)
the system crontab located at /etc/crontab .

When I do the crontab -e (if I am recalling correctly) I am editing the user
crontab.

To edit the system crontab do I just use VI or some other editor?

I would have thought if I were root and issued crontab -e I would have been
editing the system crontab, however this was not my experience.

Thanks in advance for your insight.


------------------------
Keith Smith

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